int heif_itemtable_get_thumb_item(heif_itemtable_h handle, heif_image_item_h *thumb_item);
int heif_itemtable_get_image_resolution(heif_image_item_h image_item, unsigned int *width, unsigned int *height);
int heif_itemtable_get_image_orientation(heif_image_item_h image_item, unsigned int *orientation);
-int heif_itemtable_get_image_mirror_mode(heif_image_item_h image_item, unsigned int *axis);
+int heif_itemtable_get_image_mirror_mode(heif_image_item_h image_item, heif_mirror_mode_e *mirror);
int heif_itemtable_get_grid_info(heif_image_item_h image_item, unsigned int *row, unsigned int *column, GSList **img_refs);
int heif_itemtable_get_coded_data(heif_itemtable_h handle, heif_image_item_h image_item, heif_buffer_t **coded_data);
int heif_itemtable_get_exif(heif_itemtable_h handle, heif_image_item_h image_item, void **exif, size_t *exif_size);